单项选择题

Much of the equipment was lying______ because of a lack of spare parts.

A．helpless
B．vacant
C．idle
D．lonely
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单项选择题
When you're driving on a motorway, you must obey the signs telling you to get into the right______
A．way
B．track
C．road
D．lane
单项选择题
The manager will have to hire two more people to______ the lost time.
A．make up of
B．make up for
C．make out
D．make off
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